The turnbuckle is tightened until the tension in the cable AB equals 2.4 kN. Determine the vector expression for the tension T as a force acting on member AD. Also find the magnitude of the projection of T along the line AC.
The cable BC carries a tension of 750 N. Write this tension as a force T acting on poit B in terms of the unit vectors i j and k. The elbow at A forms a right angle.